Schedule: a typical summer Monday (the flights of Jul 27, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
ALLEGIANT · FLIGHT G4 421
SCHEDULED · TYPICAL SCHEDULE
Monday, October 5 Tomorrow
G4 421 · PIE → CVG
departs 9:03 PM ET · arrives 11:16 PM ET
Forecast issued Sun 7:00 AM ET · 38h before departure
Watch this flight
Other days
Mon 10/5
Fri 10/9 34%
Odds over time
Arrive at CVG more than 15 minutes late?
41%
chance · ±2 pts
+0 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
41%
Leave 15+ late
30%
Arrive 1h+ late
18%
Cancelled
1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
6.9d
2d
Now
1d
12h
6h
Departs
Lands
Arrive at CVG more than 15 minutes late?
Calm-weather odds: 26% · changed +0 pts in 24h
+0 pts
41%
Yes 41%
No 59%
Leave PIE more than 15 minutes late?
Calm-weather odds: 22% · changed −3 pts in 24h
−3 pts
30%
Yes 30%
No 70%
Arrive at CVG more than an hour late?
Calm-weather odds: 6% · changed −3 pts in 24h
−3 pts
18%
Yes 18%
No 82%
Cancelled?
Calm-weather odds: <1% · changed −1 pt in 24h
−1 pt
1%
Yes 1%
No 99%
How late will it get to CVG?
On time or early
58%
15–30 min late
19%
30 min–1 hour late
4%
1–2 hours late
14%
Over 2 hours late
4%
Cancelled
1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Mostly benign weather forecast at PIE
↑
Later flights pick up delays from earlier in the day
↑
G4's recent on-time record
↓
Mostly benign weather forecast at CVG
↓
Mondays in October are usually quieter than average
Weather at each end
PIE (origin)
Gusts 8 kt Ceiling 5,000 ft Visibility 10+ mi Precip 0.15 in
CVG (destination)
Gusts 11 kt Ceiling none (clear) Visibility 10+ mi Precip none
How this resolves
Yes if the gate arrival is more than 15 minutes after the scheduled arrival. Cancelled or diverted flights resolve N/A.
Every question here is display only — there is no betting or money involved. Gate times come from the airline; a cancellation resolves only the “Cancelled?” question, and a diversion voids the delay questions.